User`s guide

Flowcharts and TablesTroubleshooting
Table 31. Leading Edge of Jammed Paper Is in
Fuser/Delivery Area
Step Check Result Action
1 Do the delivery rollers turn
when you start up the
printer?
No Go to Step 6.
2 Is there crumpled paper
just outside the exit point of
the fuser assembly?
Yes A snagged sensing lever is probably
the cause of the problem. Remove the
top cover and delivery roller assembly,
and inspect the delivery/interlock
sensor. If the delivery-sensing lever is
broken, replace it.
3 Is there an accordian-style
jamming just short of the
paper delivery tray?
Yes The delivery guide pins might have
been installed incorrectly. These are
the four small pins on the delivery
roller assembly. They should point
outward, with the flow of paper.
4 Does jamming occur only
when paper feeds from the
multipurpose tray?
Yes Inspect the sensing lever for
multipurpose paper-end sensor
PS701. Unsnag or replace it if it is
damaged.
5 Remove the rear panel and
I/O shield. Place probes
betweenJ208-2 (GND) and
J208-3 (PSNS) on the DC
controller board. Does the
voltage rise from 0 to 5 V
as you open the fuser
access door?
Ye s
No
Replace the DC controller board.
Replace the delivery/interlock sensor.
6 Remove the rear panel and
I/O shield. Restart the
printer and observe the
main motor. Does the main
motor spin when the printer
starts up?
Yes Trace mechanical drive components
from the delivery rollers back to the
main motor, taking special note of the
delivery drive belt. Clean or replace
parts as necessary.
7 Make sure that the main
motor is secure at J211 on
the DC controller board,
then run the Extended
Power-On Self Test. Does
the diagnostic indicate a
main motor error?
Ye s
No
Go to Table 8.
Check main motor drive components
for binding or improper installation.
Clean or replace parts as required.